Where a district boundary line divides a lot in single ownership existing as of September 1, 2016, the use authorized on and the district requirements of the least-restricted portion of the lot shall be construed as extending to the entire lot, provided that the extension shall not include any part of the lot which is more than 35 feet from the district boundary line.

Wherever a street, lane, alley, highway or any part thereof constitutes the dividing boundary line of two specified districts, and the part thereof is vacated, or the public rights therein otherwise extinguished, the center line of the vacated street, lane, alley, highway or any part thereof shall constitute the dividing boundary line of the specified districts, and the lands formerly within the street, alley, lane, highway or part thereof so vacated, or wherein the public rights shall be extinguished, on either side of the center line shall be subject respectively to the restrictions, limitations and regulations imposed by this chapter upon the abutting lands.